How can I convert microscopic image length in pixel to um for an image taken from Leica DM2500?

I have been doing work on seedling stomata. the old images cannot be measured in um but can in pixel. so I need to convert the measurement to um.

30 September 2020 7,979 4 View

What are the good and bad things of consuming mass gainer by a male after working out in a Gym?

Some people consumes mass gainer after working out in Gym. What are the good and bad effects of mass gainer?

13 March 2019 5,274 1 View

Which is the white cover of Artocarpus seeds?

In Artocarpus heterophyllus seeds a white coat is covering it . Can you say the actual name of the cover ? Is it endocarp or any other part ?

13 May 2018 3,730 5 View

How can we standardize the concentration of DNA for qPCR?

Srinath Mote

03 January 2017 8,118 3 View

For how long time plant extracts can be stored?

I have prepared some methanol extracts of Rauvolfia root for alkaloid estimation. It is stored in refrigerator and now I want to know the storage life of that extract.

10 March 2016 4,700 10 View

What are the major differences between MDA-MB-231 and MCF-7 cell lines?

Please let me know why MDA-MB-231 cells are more sensitive to any drug treatment when compared to MCF-7 cells? Both of them are human breast cancer cell lines.

08 March 2015 7,189 28 View

Are there any specific primers for the molecular variability study of Rhizoctonia solani 1-1 AG?

19 December 2014 1,064 2 View

How can I get the crystallographic card of Cloisite 93 A ( a modified Montmorillonite nanoclay) & epoxy/cloisite nanocomposites?

Crystallographic card (PDF) JCPDS indexes

14 September 2014 2,036 5 View

mean fluorescence intensity

what is mean fluorescence intensity? what is its use and how it is measured?

08 August 2011 4,102 18 View

What is the difference between predictive & model predictive control?

Dear Sir, I have read few articles about predictive torque control of an Induction machine. Is there any specified difference in designing or control aspects between predictive & model...

01 January 1970 9,279 7 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Why the CHi^2 is close to zero with a bad fitting but the Rp and Rwp are still high?

I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...

23 February 2021 2,304 4 View

Why CHi^2 is reducing if I divide the intensity by a constant factor?

I was refining my XRD data in FullProf. Highest intensity was 400000. The fitting was good but still the Chi^2 value is very high (0.174E+04) I divided the intensity by some constant factor (say...

17 February 2021 3,383 5 View

Is it possible to do Reitveld Refinement on single crystal XRD data?

I tried to do single-crystal Rietveld Refinement on my single-crystal XRD data using the option "refinement on single-crystal data/ integrated intensity data" in Fullprof but it is giving error...

30 January 2021 7,813 3 View

How to take into account the high resolution of the x-ray difractometer?

At small angles or in case high collimation, the peaks become anisotropic and with a Lorentz addition. The resolution describes correctly only with adding Lorentz and anisatropy parameters. It...

26 January 2021 5,829 4 View

Can someone advise me to do Rietveld Refinement of the material whose Crystallographic Information Framework (CIF) file is not available?

10 October 2020 7,411 9 View

How to fix the refinement on Fullprof?

I have an XRD pattern of malachite phase in a range of 5-50 degree in 2 theta. After that, I use MID-JADE software to refine the pattern and it shows a good refinement with low R-value and GOF...

03 October 2020 3,613 8 View

How is it possible to simulate or model particle morphology using X-ray powder diffraction?

Hello everyone! I suppose the XRD of sample LaPO4 has some anisotropic line broadening along [h00]. How could I model the shape of particle using WPPF method or something else? Diffraction...

21 September 2020 1,823 3 View

In FullProf XRD Fitting, which FWHM parameters(u,v,w) should be negative?

Generally v is negative initially but what it should be after fitting. what does a negative sign or positive sign of u,v,w mean ?

02 August 2020 7,907 5 View

How can I improve the rietveld refinement model and lower the R bragg factor and chi-square?

I measured a fluconazole drug sample and found 2 phases. Then, for the first time, I tried to apply the rietveld refinement method using Match! and got relatively high values for both R bragg...

27 July 2020 9,492 4 View